Read Edit View history 煤层 méicéng coal seam Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 煤层/ 煤層 méicéng coal seam noun · a layer or stratum of coal found between other layers of rock 这里的煤层埋藏得很浅〒 Edit Delete References Add reference No references for this word.
煤层/ 煤層 méicéng coal seam noun · a layer or stratum of coal found between other layers of rock 这里的煤层埋藏得很浅〒 Edit Delete